ThingSpeak

Hi everyone, I am experiencing a critical issue with one of my MATLAB Visualizations (App ID: 684176). Two days ago, everything was working perfectly, but now the public URL only renders the grid, axis labels, and the legend – the actual data curves are completely missing (blank plot area). Here is the technical breakdown of what I have verified and tested so far to rule out standard errors: Code & Data execution: Inside the MATLAB Visualizations editor, clicking "Save and Run" works flawlessly. The plot displays both curves correctly. Checking disp(size(data)) in the editor output returns 400 2, confirming that the script successfully pulls 400 data points across 2 variables from the channel. Channel & Key settings: The underlying channel is set to public, and the correct Read API Key is explicitly defined in the script using single quotes. App Privacy: The "Create a public URL" checkbox is enabled. However, testing the public URL in a private/incognito browser window results in the error message: "The author made this visualization private." This occurs even though the box is checked in the backend and the script was resaved. Local Browser Issues: We ruled out local browser cache, extensions, and ad-blockers. The issue persists across different browsers (Firefox, Chrome, Edge), on different devices (PC and mobile via cellular network), and after performing hard refreshes (Ctrl + F5) with browser tracking protection completely disabled. Server-Side Cache Reset: I have tried toggling the "Create a public URL" checkbox off and on, modifying minor code properties (like changing the LineWidth to force a redraw), and re-saving the script. The server still returns the same empty grid on the public link. It seems like there is a synchronization or backend rendering bug between the logged-in session/MATLAB editor and the anonymous public worker instance for this specific App ID. Could a forum administrator or support engineer please look into why the public rendering worker is failing or treating this specific visualization as private? Thank you in advance! /

I am working on showing the coordinate on the map in my ThingSpeak channel. However, it only allow to show 1 coordinate on my created map. How should I hold the previous coordinate, then adding multiple coordinate continuously without refreshing the webpage? (Paid license account) Hopefully someone can provide your suggestion to me. Thanks in advance.

The channel is collecting the data since starting May, but in the visualization i can only see the last 8 days. What am i doing wrong? see my code below % Template MATLAB code for visualizing data using the YYAXIS and PLOT functions. readChannelID = [xxx]; fieldID1 = [1]; readAPIKey = 'xxx'; startTime = datetime(2022,05,02,09,15,00); endTime= startTime+ days(80); %% Read Data %% [data1, time1] = thingSpeakRead(readChannelID,'Field',fieldID1,'dateRange',[startTime endTime],'ReadKey', readAPIKey); [data4, time4] = thingSpeakRead(readChannelID,'Field',fieldID4,'dateRange',[startTime endTime],'ReadKey', readAPIKey); %% Visualize Data %% yyaxis left; plot(time1, data1,'b'); ylabel('kg Waage'); ylim([22 80 ]); yyaxis right; plot(time4, data4,'r'); ylabel('Grad Außentemperatur'); ylim([-60 40]);

And not just a small ThingSpeek visualization graf on the computer screen.

Hello, i have a channel that is collecting the temperature data from a dsb1820 via an esp8266. The channel is collecting the data since 10 days, but in the visualization i can only see the last 24 hour. When i change the settings of the visalization - i can see the last 10 days but only one datapoint per day. What am i doing wrong?

I have created very simple MATLAB visualization for my ThingSpeak channel, I have changed visualization background color and added this vocalization to my channel, for some reason which I don't understand I have here one white area which I can't disable: My code: hold on h1 = histogram(allData(:,1)); h2 = histogram(allData(:,2)); h1.NumBins = 10; h2.NumBins = 10; title('Temperature'); grid on set(gca,'color',uint8([238,238,238])) set(gcf,'color',uint8([238,238,238])) Do you know how to disable this area or at least change color of the area?

My channel is at: https://thingspeak.com/channels/957733 Its an arduino fridge controller. It has three fields, temperature, humidity and mode. The fridge is used for charcuterie, so I have different modes for the different stages of the process. I have set 6 diferent values for the mode field, from 1 to 6. I change the visualization title using this code: modo = thingSpeakRead(957733,'Fields',[3]); if modo == 1 title('Heladera en modo Fermentado'); elseif modo == 2 title('Heladera en modo Estacionado'); elseif modo == 3 title('Heladera en modo Madurado'); elseif modo == 4 title('Heladera en modo Heladera'); elseif modo == 5 title('Heladera en modo Cava'); elseif modo == 6 title('Heladera en modo Manual'); end Is it possible to trigger an update when the mode changes? at the moment the only way the visualization title changes is when I refresh the browser page, it doesn't update like the plot does. Thanks

3D plot of GPS location and Overlay the GPS data on map